Japanese speech is unavailable
Open your device's text-to-speech settings and install an offline Japanese voice, then reopen Kotoba Forge. The app's Settings → Japanese speech → Test voice control can guide you to the relevant Android settings.
Support
Help when you need it.
Most Kotoba Forge data and settings live entirely on your device. These are the quickest ways to solve common issues.
Contact & feedback
Questions, recommendations, or ideas for improvement?
For any and all questions about Kotoba Forge — whether you need help, have a recommendation, or want to suggest an improvement — email me directly at:
I’ll try to reply within 2 business days.
Microphone practice is not working
Microphone access is optional. If you want to record yourself, allow microphone permission when Kotoba Forge asks. You can also change the permission later in Android Settings.
Back up or move progress
Use Settings → Export progress to create your own local backup file. On another installation, choose Import progress and select that file.
Start over
Use Settings → Reset all progress to erase Kotoba Forge learning data. You can also clear app storage in Android Settings or uninstall the app.
Something looks wrong
Use Settings → Export support diagnostics. The file contains technical environment details and counts, but not your saved learning answers, custom text, handwriting, or microphone audio.
Frequently asked questions
Can I use the app without creating an account?
Yes. Kotoba Forge has no learner account system.
Does deleting the app delete my progress?
Yes, unless you created your own progress export first. There is no cloud copy to restore from automatically.
Can I decline microphone permission?
Yes. Recording practice is optional and declining it does not block the rest of the course.
Why does a Writing Studio item use freehand reference mode?
Some optional studio characters do not have an exact bundled stroke template. Kotoba Forge keeps those exercises offline rather than downloading a guide at runtime.
Support the project
Kotoba Forge is built and maintained independently. If you would like to support continued development, you can donate securely through PayPal.